Electric incandescent lamp for advertising purposes



Feb. 9 1926.

O. FEHLER ELECTRIC INCANDESCENT LAMP FOR ADVERTISING PURPOSES Filed August 29, 1921 2 Sheets-Sheet 1 Feb. 9 1926.

O. FEHLER ELECTRIC INCANDESCENT LAMP FOR ADVERTISING PURPOSES 2 Sheets-Sheet 2 Filed August 29, 1921 Fig.5. W ALLA; a 6 gy w u fill Fig.9.

ejggintor: 015 10 F 2" 7 riwy Patented Feb. 9, 1926.

OTTO FEHLER, OI! BERLIN-STEGLITZ, GERMANY.

ELECTRIC INCANDESCENT LAMP FOR ADVERTISING PURPOSES.

Application filed August 29, 1921. Serial No. 496,645. 7

(GRANTED UNDER THE PROVISIONS OF THE ACT OF MARGH 3, 1821, 41 STAT. L, 1813.)

To all whom it may concern:

Be it known that I, O'rro FEIILER, subject or citizen of the German Republic, residing at Berlin-Steglitz, Poschingerstrasse 28, Germany, have invented certain new and useful Improvements in or Relating to Electric Incandescent Lamps for Advertising Purposes, for which I have filed applications in Germany April 20, 1920, and April 13, 1921, and of which the following is a specification.

The invention relates to improvements in incandescent lamps and the use of the same for advertising purposes in a manner such as is illustrated in my application dated October 12, 1920, Serial No. 416,591. In the present invention however the stars as employed in the above mentioned application are replaced by incandescent figures having glass supports.

Objects of the invention are to produce a simple device which may be readily assembledfor use by unskilled workmen and in which the workmen manufacturing the lamps are prevented from using their own discretion in regard to the arrangement of filaments, but are guided in accordance with certain lines designated within the lamp.

Other objects are the support of the filament within a lamp in such a manner that provision may be made for variations in the walls of the lamp and in the tension between the said walls and the filament.

Another object is to provide means whereby the lamp may be fastened to a support and adjusted to various positions without breaking the contact.

Another object is to adapt the lamp to the use of a spirally wound filament.

Furtherobjects will appear in the course of the following specification and claims.

Referring to the drawings:

Fig. 1 shows an incandescent bulb having a supporting structure therein on which an advertising device is outlined, said device in the present instance being in the form of what is known as an Odol-flask.

Fig. 2 shows a similar arrangement in which certain letters are mounted on the supporting structure.

Fig. 3 is a detail view showing the advertising supporting structure removed from the lamp.

Fig. tie a. s e View to that of Fig- 3 but differing therefrom in that the support ing structure is fused directly to the supporting strips or pins.

Fig. 5 represents a plurality of supports for the filament mounted separately in globules of glass which may be of various shapes and as shown strung upon a wire.

Fig. 6 is a cross section of one of the globules showing the construction thereof and its adaptability to be strung upon a wire.

Fig. 7 shows a similar globule having a projection adapted to be received in a socket.

' Fig. 8 shows a modification of the globule gdaptcd to be strung upon a flat strip or Fig. 9 shows an incandescent lamp with letters formed therein of supporting members such as illustrated in Figs. 5 to 8 inclusive.

Fig. 10 is an elevation of a slightly different form of my invention in which arrangement is made for an additional filament besides that used to outline the advertisement.

Fig. 11 is a section through the device as shown in Fig. 10, showing hooks on both sides of a diaphragm and arranged for the purpose above set forth.

Fig. 12 shows a supporting structure made of a sheet of material and corresponding to a letter of an advertisement, on the edges or other parts of which narrow strips may be formed by stamping, said narrow strips being adapted to be bent to form hooks such as are illustrated in connection with the preceding figures.

Referring to the drawings in detail, the parts of which are designated by reference characters, and first referring to the form of my invention illustrated in Figure 1;

1 designates the outlines of an object to be shown or illustrated in electric lights. The specific object here shown is in the form of an Odol-flask. This object is preferably mounted on strips or bars 5 of glass or other suitable insulating material, which are secured at one end to the cap of the lamp. The opposite end of the support 5 is preferably secured to the walls of the socket by means of a strip or wire 3, and an intervening spring member 4. About the outlines of the member 1 which is preferably of insulating material, are a pluralit of hooks 2 located at the various bends o the member 1 and at as many intermediate positions as are found by practice to be necessary or desirable. Upon the hooks 2 is mounted the light giving filament WlllCh s preferably of s iral formation to ada t it to be more rea ily and more easily p aced upon said hooks, the hooks used in any outline should be sufficient to prevent the filament from sagging and to maintain in strict conformity to the outline desired to be illuminated. Further, a more uniform light intensity may be obtained by the use of spiral filaments, since where straight filaments are used a letter of short length, not being formed of wire of as great a length as a lettor of greater length, will not appear as brilliant as the letter of greater length, whereas where a spiral wire is used the wire forming each letter may contain a sufficient number of spirals or convolutions, according to the length of the letter, to secure a umform intensity of light for all letters. The cap of the lamp is preferably provided with a spring member 7 attached to its rear end at 6, and in electrical contact with the filament. This spring is desirable in order to adapt the lamp to be adjusted in various positions without breaking the electric contact.

In the device as shown in Figs. 2 and 3 there is a pair of supporting strips or bars 5 of glass or other suitable insulatin material on which are mounted a plurality of letters 1, also of glass or other suitable insulating material, forming a legend, the letters as shown being provided with a plurality of hooks 2' on which a filament may be mounted, the hooks 2 being shown over only a small part of the initial letter. The form as shown in this figure is also provided with a plurality of springs 4 connecting the supports 5' to a member 3.

Figure 3 shows resilient means, in the form of sprin s 4 interposed between the support 5 an the letters 1'. p

In Figure 4, the construction differs from that of Figure 3 only in that the support 1 is directly connected to the glass support 5.

Referring now to Figures 5 to 9 inclusive, 6 designates a wire on which a-plurality of globules or pearls 7, 8, 9, 10 and 11 are strung, each globule or pearl supporting and insulating a hook 2. The form shown in Figure 6 being of the character designated by the reference character 7 and having an aperture therethrough to receive the wire 6. The form shown in Figure 7 is provided with a plug 13 adapted to fit in a socket and the form shown in Figure 8 is provided by a passageway rectangular in cross section and adapted to be supported upon a flat strip.

Figure 9 shows an application of the globules or pearls as illustrated in Figure 5 to the production of a sign, the wire 6 being bent into various forms as in the shape of letters to proper] connect to a plate 15 which is sup orte by a member 16 of glass or other insu ating material, the ends of the letters being connected to the conducting wires by means of conduits 17.

In the form as shown in Figures 10 and 11 the lamp may be used both as an advertislng medium and for reading or doing other Work thereby. In this form a plate 19 is secured within the globe and hooks are placed on both sides of the plate, the hooks on one side outlining the advertisement to be exploited and on the other side arranged to best advantagefor giving light to one working or reading thereby.

Figure 12 shows a supporting structure 21 in which the support is made of iron or other similar material formed in the shape that is to be outlined and having small strips 22 struck up therefrom either on the edge or in any other portion desired, said small strips being ada ted to be formed into hooks or the like or carrying the filament.

I claim:

1. An incandescent light of the character described, comprising a vacuum lobe, an insulated support located within t e globe, means outlining the figures to' be illuminated carried by said support, hooks upon said outlining means and a spirally wound filament supported by said hooks, said sup-' port being connected at one end to the cap of the globe and at its other end having resilient connection with said globe.

2. An incandescent lamp of the character described, comprising a vacuum lobe, a support of insulating material wit in said globe, resilient means carried by said support, means outlining the characters to be lluminated and supported by said resilient means, a plurality of hooks carried by said outlinlng means, and a filament passing over said hooks, said resilient means permitting relative movement between said outlining means and said support.

In testimony whereof I have hereunto set my hand.

o'r'ro FEHLEB.

llfl 

